Bump deptry from 0.20.0 to 0.21.0

Bumps [deptry](https://github.com/fpgmaas/deptry) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/fpgmaas/deptry/releases)
- [Changelog](https://github.com/fpgmaas/deptry/blob/main/CHANGELOG.md)
- [Commits](fpgmaas/deptry@0.20.0...0.21.0)

---
updated-dependencies:
- dependency-name: deptry
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -54,7 +54,7 @@ optional-dependencies.dev = [
     "actionlint-py==1.7.4.18",
     "check-manifest==0.50",
     "check-wheel-contents==0.6.0",
-    "deptry==0.20.0",
+    "deptry==0.21.0",
     "dirty-equals==0.8.0",
     "doc8==1.1.1",
     "doccmd==2024.11.7",